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Finding the Fourth Proportional to 173,309.95, 259,974.15 and 54,990.55

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Solution

The fourth proportional to 173,309.95, 259,974.15 and 54,990.55 is: 82,488.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,309.95 : 259,974.15 = 54,990.55 : x
  2. Step 2: Convert to fraction form
    173,309.95/259,974.15 = 54,990.55/x
  3. Step 3: Cross multiply
    173,309.95x = 259,974.15 × 54,990.55
  4. Step 4: Simplify right side
    173,309.95x = 14,296,121,494.28
  5. Step 5: Solve for x
    x = 14,296,121,494.28/173,309.95
  6. Step 6: Final answer
    x = 82,488.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.